Roridomyces austrororidus (Singer) Rexer 1994

Caption:

Details

Name scientific

Roridomyces austrororidus (Singer) Rexer 1994

Preferred name

Roridomyces austrororidus (Singer) Rexer 1994

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Indigenous, non-endemic

Present

New Zealand

Political Region

Also present in Australia

Nomenclature

Combination authors

Rexer

Original authors

Singer

Authors

(Singer) Rexer

Publication place

Rexer, K.H. (ed) 1994: Die Gattung Mycena s.l.

Year published

1994

Publication page

140

Nomenclatural code

ICNP

Basionym

Mycena austrororida Singer 1962

Taxonomic rank

species

Canonical form

Roridomyces austrororidus

Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Agaricales

Family

Mycenaceae

Genus

Roridomyces

Species

austrororidus

Synonyms

Associations

View full associations record

Association type

Associated organism

Association source

has host

Fuscospora truncata

PDD (1 records from [Not available].)

has host

Kunzea ericoides (A.Rich.) Joy Thomps. 1983

PDD (1 records from [Not available].)

has host

Leptospermum

PDD (1 records from [Not available].)

has host

Leptospermum scoparium J.R.Forst. & G.Forst.

PDD (4 records from [Not available].)

has host

Metrosideros excelsa Gaertn.

PDD (1 records from [Not available].)

has host

Nothofagus

PDD (1 records from [Not available].)

has host

Pinus

PDD (4 records from [Not available].)

has host

Quercus robur L.

PDD (1 records from [Not available].)

has host

Ripogonum scandens J.R.Forst. & G.Forst.

PDD (1 records from [Not available].)

has host

Salix fragilis L.

PDD (1 records from [Not available].)

has host

Ulex europaeus L.

PDD (1 records from [Not available].)

Descriptions

Horak, E. 1971: A contribution towards the revision of the Agaricales (Fungi) from New Zealand. New Zealand Journal of Botany 9(3): 403-462.

Omphalia stellata sensu Massee 1899 [1898]

Notes

Omphalia stellata (Fries) (8,16) Fig. 25 = Mycena veronicae Stevenson

The identification of this material (COLENSO 545 b) is confirmed by the typical club-shaped cells in the cuticle filled with a brown cell sap, decurrent gills, and the ovoid spores.

Horak, E. 1978: Mycena rorida (Fr.) Quel. and related Species from the Southern Hemisphere. Berichte der Schweizerischen Botanischen Gesellschaft 88(1/2): 20-29.

Mycena austrororida Singer 1962

Collections Examined

CHILE: Osorno, Valle „Gol-Gol", Anticura, I April 1963, Horak (ZT 66/149). - Osorno, coastal forest near Pucatrihue, 30 April 1963, Horak (ZT 66/349). - NEW ZEALAND: Kelburn, 20 May 1958, V. Fell in herb. Stevenson-Cone (holotype of M. veronicae Stev., K). - New Zealand, Colenso b 545 (K). - Nelson, N of Collingwood, Pakawau Creek, 7 May 1968, Horak (ZT 68/390).

Description

Pileus -20 mm, hemispherical or convex when young later becoming either depressed or subumbonate at centre, not distinctly umbonate, striate margin incurved, white, pale brownish, pale grey-brown or pale yellow-brown, centre covered with minute brown or black dots or squamules, membranaceous, dry. Lamellae (L6-l4, 1-3), arcuate-decurrent, white to pallid, edge albofimbriate, occasionally with subglutinous detachable thread. Stipe -50 / -2 mm, cylindric or slightly attenuated towards apex, white or pale grey-brown, glutinous when wet, pruinose in dry condition, hollow, single or in dense clusters. Odour and taste pot distinctive. Context pale brown beneath cuticle, white in stipe. Chemical reactions on pileus: KOH-negative. Spores 9-12 (12,5) / 6-8 µm., ovate to broadly elliptic, hyaline, smooth, amyloid. Basidia 28-40 / 9-13 µm, 4-spored. Cheilocystidia 40-80 / 3-9 µm., cylindric-subclavate to elongate-clavate, rarely elongate-fusoid, hyaline, thin-walled membrane. Caulocystidia similar. Cuticle a celluloderm of clavate cells (20-90 / 10-30 µm.), with brown plasmatic pigment. Clamp connections present.

Habitat

On rotting leaves, bark and wood of trees (in New Zealand observed on Pinus. Leptospermum, Rhipogonum), rarely on herbaceous debris. Juan Fernandez (type), Chile, Argentina (Singer 1969: 1 19), New Zealand.

Illustrations

Singer (1959: I.e.); Stevenson (1964: I.e.) Horak (1971: 403).

Notes

According to Singer (1969: 119) the type material of M. austrororida is kept in S. However, despite intensive search, the type collection was not located there.

Based upon our present knowledge M. austrororida is distributed in the sub-antartic region East (Juan Fernandez, southern parts of Chile and Argentina) and West (New Zealand) of the Pacific Ocean. Careful macroscopical and microscopical observations showed that there are no distinctive differences between the specimens cited above (compare also Fig. 5 and 6), with one exception: the cheilocystidia of the South American collections are more clavate-subcapitate as the ones observed on New Zealand specimens. Concerning luminescence of the carpophores no information has been reported yet.

Johnston, P.R. 2010: Kew Type Specimens - images and notes from P.R. Johnston, 2010.

Mycena austrororida Singer 1962

Notes

[Notes from Kew Type specimen, PRJ 2010] Kew images.

Johnston, P.R. 2010: Kew Type Specimens - images and notes from P.R. Johnston, 2010.

Mycena veronicae G. Stev. 1964

Notes

[Notes from Kew Type specimen, PRJ 2010] Other collections at K Stevenson GS 641

Massee, G.E. 1899: The fungus flora of New Zealand. Transactions and Proceedings of the New Zealand Institute 31: 282–349.

Omphalia stellata sensu Massee 1899 [1898]

Description

Entirely white. Pileus truly membranaceous, convex, umbilicate, pellucidly striate, glabrous, 1-1.5 cm. across; gills decurrent, rather distant, thin, not triangular; spores elliptical, 6-7 X 4 µ; stem usually about 2 cm. long, very slender, fragile, stuffed, then hollow, often curved, base dilated and radially strigose or hairy.

Distribution

Dannevirke, New Zealand. Europe.

Habitat

On logs, stumps, &c.

Notes

Often gregarious. Distinguished by the semitranslucent white colour of every part, and the strigose base of the stem. Pileus frequently excentric.

Stevenson, G. 1964: The Agaricales of New Zealand: V. Kew Bulletin 19(1): 1-59.

Mycena veronicae G. Stev. 1964

Description

Pileus 3-15 mm diam., pale olive fawn to whitish with fawn tint, hemispheric to plano-convex, becoming indistinctly sulcate-striate at margin smooth to velvety; flesh thin, fawn. Gills strongly decurrent, white with minutely fringed margins, moderately distant, with long and short intercalated. Stipe 1-2 cm. x 1-3 mm, white to pale fawn, glutinous, hollow-fragile, with or without a few spreading hairs at swollen base. Spores 10-11 x 6-8 µm, amyloid, thin-walled. Hymenophoral trama and tissue of pileus pseudoamyloid. Cheilocystidia hair-like to ovate, 20-30 x 5-10 µm. Cuticle with scattered swollen dermatocystidia, 20-35 x l5-20 µm, with grey contents (Fig. 56).

Habitat

On fallen wood, Karori, Wellington, 12.6.1949, Stevenson; Silverstream, 21.4.1958, Helen Druce, Kelburn, 20.5.1958, Veronica Fell in Stevenson (type); Keith George Park, 7.6.1958, Stevenson.

Latin

Pileus 3-15 mm diam., pallide olivaceo-hinnuleus usque albus hinnuleo-tinctus, hemisphaericus usque plano-convexus, deinde margine indistincte sulcato-striatus, laevis usque velutinus; caro tenuis, hinnulea. Lamellae valde decurrentes, albae, marginibus minute fimbriatis, modice distantes, longiores cum brevioribus intercalatae. Stipes 1-2 cm x 1-3 mm, albus usque pallide hinnuleus, glutinosus, cavus, fragilis, basi tumida nonnunquam pilis paucis patentibus instructa. Sporae 10-11 x 6-8 µm, amyloideae, parietibus tenuibus. Trama hymenophoralis et pilei textura pseudo-amyloidea. Cheilocystidia piliformia usque ovoidea, 20-30 x 5-10 µm. Cuticula dermatocystidiis tumidis sparsis 20-35 x 15-20 µm instructa, materie inclusa grisea.

Typification

Typus: V. Fell in Stevenson 1324